Commit: patch 9.1.2012: Vim9: cannot initialize class member with protected var

[Christian Brabandt]

patch 9.1.2012: Vim9: cannot initialize class member with protected var

Commit: https://github.com/vim/vim/commit/cbcc5babbad8dc15bc20ebbd2ffb18709816bc04
Author: Foxe Chen <chen...@gmail.com>
Date: Tue Dec 23 20:17:30 2025 +0000

patch 9.1.2012: Vim9: cannot initialize class member with protected var

Problem: Vim9: cannot initialize class member with protected var
Solution: Allow this to work if this happens within the same class
(Foxe Chen)

closes: #18949

Signed-off-by: Foxe Chen <chen...@gmail.com>
Signed-off-by: Christian Brabandt <c...@256bit.org>

diff --git a/src/eval.c b/src/eval.c
index 5fa45a961..d7ce2a17e 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -131,6 +131,7 @@ fill_evalarg_from_eap(evalarg_T *evalarg, exarg_T *eap, int skip)
evalarg->eval_getline = eap->ea_getline;
evalarg->eval_cookie = eap->cookie;
}
+ evalarg->eval_class = eap->class;
}

/*
diff --git a/src/ex_cmds.h b/src/ex_cmds.h
index 48b69ea82..638a5faa9 100644
--- a/src/ex_cmds.h
+++ b/src/ex_cmds.h
@@ -1973,6 +1973,8 @@ struct exarg
void *cookie; // argument for getline()
#ifdef FEAT_EVAL
cstack_T *cstack; // condition stack for ":if" etc.
+ class_T *class; // Name of class being defined. Used by :class
+ // and :enum commands.
#endif
};

diff --git a/src/globals.h b/src/globals.h
index 9b101d8f2..2aed9378e 100644
--- a/src/globals.h
+++ b/src/globals.h
@@ -2025,7 +2025,7 @@ EXTERN listitem_T range_list_item;
EXTERN evalarg_T EVALARG_EVALUATE
# ifdef DO_INIT
= {EVAL_EVALUATE, 0, NULL, NULL, NULL, NULL, GA_EMPTY, GA_EMPTY, NULL,
- {0, 0, (int)sizeof(char_u *), 20, NULL}, 0, NULL}
+ {0, 0, (int)sizeof(char_u *), 20, NULL}, 0, NULL, NULL}
# endif
;
#endif
diff --git a/src/structs.h b/src/structs.h
index bc2f49f7d..9b095c328 100644
--- a/src/structs.h
+++ b/src/structs.h
@@ -2282,6 +2282,9 @@ typedef struct {

// pointer to the lines concatenated for a lambda.
char_u *eval_tofree_lambda;
+
+ // pointer to name of class being constructed
+ class_T *eval_class;
} evalarg_T;

// Flag for expression evaluation.
diff --git a/src/testdir/test_vim9_class.vim b/src/testdir/test_vim9_class.vim
index d0260c202..69fad3381 100644
--- a/src/testdir/test_vim9_class.vim
+++ b/src/testdir/test_vim9_class.vim
@@ -12407,10 +12407,14 @@ def Test_protected_new_method()
vim9script
class A
static var _instance: A
+ static var handler: func = A._Internal
var str: string
def _new(str: string)
this.str = str
enddef
+ static def _Internal(): string
+ return "test"
+ enddef
static def GetInstance(str: string): A
if _instance == null
_instance = A._new(str)
@@ -12422,6 +12426,24 @@ def Test_protected_new_method()
var b: A = A.GetInstance('bar')
assert_equal('foo', a.str)
assert_equal('foo', b.str)
+ assert_equal('test', A.handler())
+ END
+ v9.CheckSourceSuccess(lines)
+
+ lines =<< trim END
+ vim9script
+ enum Test
+ A,
+ B,
+ C
+
+ static var handler: func = Test._Internal
+
+ static def _Internal(): string
+ return "test"
+ enddef
+ endenum
+ assert_equal('test', Test.handler())
END
v9.CheckSourceSuccess(lines)
enddef
diff --git a/src/version.c b/src/version.c
index 247fc47aa..01967fcec 100644
--- a/src/version.c
+++ b/src/version.c
@@ -734,6 +734,8 @@ static char *(features[]) =

static int included_patches[] =
{ /* Add new patch number below this line */
+/**/
+ 2012,
/**/
2011,
/**/
diff --git a/src/vim9class.c b/src/vim9class.c
index 409bb50f7..11b4c43f5 100644
--- a/src/vim9class.c
+++ b/src/vim9class.c
@@ -2122,6 +2122,8 @@ early_ret:
cl->class_object_type.tt_type = VAR_OBJECT;
cl->class_object_type.tt_class = cl;

+ eap->class = cl;
+
// Add the class to the script-local variables.
// TODO: handle other context, e.g. in a function
// TODO: does uf_hash need to be cleared?
@@ -3243,7 +3245,8 @@ class_object_index(
if (fp != NULL)
{
// Protected methods are not accessible outside the class
- if (*name == '_')
+ if (fp->uf_defclass != evalarg->eval_class
+ && *name == '_')
{
semsg(_(e_cannot_access_protected_method_str), fp->uf_name);
goto done;